56186540 has 12 divisors (see below), whose sum is σ = 117991776. Its totient is φ = 22474608.

The previous prime is 56186527. The next prime is 56186561. The reversal of 56186540 is 4568165.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 56186540.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1404644 + ... + 1404683.

It is an arithmetic number, because the mean of its divisors is an integer number (9832648).

Almost surely, 2^56186540 is an apocalyptic number.

It is an amenable number.

56186540 is an abundant number, since it is smaller than the sum of its proper divisors (61805236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56186540 is a wasteful number, since it uses less digits than its factorization.

56186540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809336 (or 2809334 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 56186540 is about 7495.7681394237. The cubic root of 56186540 is about 383.0105730981.

The spelling of 56186540 in words is "fifty-six million, one hundred eighty-six thousand, five hundred forty".